package grape.auth.rest.auth2.wxmp;

import org.springframework.security.authentication.*;
import org.springframework.security.core.Authentication;
import org.springframework.security.oauth2.common.exceptions.InvalidGrantException;
import org.springframework.security.oauth2.provider.*;
import org.springframework.security.oauth2.provider.password.ResourceOwnerPasswordTokenGranter;
import org.springframework.security.oauth2.provider.token.AuthorizationServerTokenServices;

import java.util.LinkedHashMap;
import java.util.Map;

/**
 * 参考 org.springframework.security.oauth2.provider.password.ResourceOwnerPasswordTokenGranter 添加微信授权码登录
 * Created by yangwei
 * Created at 2020/7/28 16:43
 */
public class WxMpCodeResourceOwnerPasswordTokenGranter extends ResourceOwnerPasswordTokenGranter {

    private static final String GRANT_TYPE = "wx_mp_code";
    private final AuthenticationManager authenticationManager;
    public WxMpCodeResourceOwnerPasswordTokenGranter(AuthenticationManager authenticationManager, AuthorizationServerTokenServices tokenServices, ClientDetailsService clientDetailsService, OAuth2RequestFactory requestFactory) {
        super(authenticationManager, tokenServices, clientDetailsService, requestFactory,GRANT_TYPE);
        this.authenticationManager = authenticationManager;
    }
    @Override
    protected OAuth2Authentication getOAuth2Authentication(ClientDetails client, TokenRequest tokenRequest) {

        Map<String, String> parameters = new LinkedHashMap<String, String>(tokenRequest.getRequestParameters());
        String username = parameters.get("username");
        String password = parameters.get("password");

        Authentication userAuth = new WxMpCodeAuthenticationToken(username, password,client.getAuthorities());
        ((AbstractAuthenticationToken) userAuth).setDetails(parameters);
        try {
            userAuth = authenticationManager.authenticate(userAuth);
        }
        catch (AccountStatusException ase) {
            //covers expired, locked, disabled cases (mentioned in section 5.2, draft 31)
            throw new InvalidGrantException(ase.getMessage());
        }
        catch (BadCredentialsException e) {
            // If the username/password are wrong the spec says we should send 400/invalid grant
            throw new InvalidGrantException(e.getMessage());
        }
        if (userAuth == null || !userAuth.isAuthenticated()) {
            throw new InvalidGrantException("Could not authenticate user: " + username);
        }

        OAuth2Request storedOAuth2Request = getRequestFactory().createOAuth2Request(client, tokenRequest);
        return new OAuth2Authentication(storedOAuth2Request, userAuth);
    }
}
